package com.awesumgames.testgame;

import java.util.Locale;

import android.app.ActionBar;
import android.app.FragmentTransaction;
import android.hardware.Sensor;
import android.hardware.SensorEvent;
import android.hardware.SensorEventListener;
import android.hardware.SensorListener;
import android.hardware.SensorManager;
import android.os.Bundle;
import android.support.v4.app.Fragment;
import android.support.v4.app.FragmentActivity;
import android.support.v4.app.FragmentManager;
import android.support.v4.app.FragmentPagerAdapter;
import android.support.v4.app.NavUtils;
import android.support.v4.view.ViewPager;
import android.util.Log;
import android.view.Gravity;
import android.view.LayoutInflater;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.view.ViewGroup;
import android.widget.TextView;

import com.awesumgames.awesum.*;
import static com.awesumgames.awesum.AwesumGlobal.Awesum;

public class MainActivity extends FragmentActivity implements ActionBar.TabListener {
    /**
     * The {@link android.support.v4.view.PagerAdapter} that will provide
     * fragments for each of the sections. We use a
     * {@link android.support.v4.app.FragmentPagerAdapter} derivative, which
     * will keep every loaded fragment in memory. If this becomes too memory
     * intensive, it may be best to switch to a
     * {@link android.support.v4.app.FragmentStatePagerAdapter}.
     */
    SectionsPagerAdapter mSectionsPagerAdapter;
    private SensorManager mSensorManager;
    private Sensor mAccelerometer;
    final float[] mValuesMagnet      = new float[3];
    final float[] mValuesAccel       = new float[3];

    /**
     * The {@link ViewPager} that will host the section contents.
     */
    ViewPager mViewPager;
    AwesumView awesumview = null;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
    	Log.d("debug", "activity::onCreate");
        super.onCreate(savedInstanceState);
        mSensorManager = (SensorManager)getSystemService(SENSOR_SERVICE);
        mAccelerometer = mSensorManager.getDefaultSensor(Sensor.TYPE_ACCELEROMETER);
        Awesum.context = getApplicationContext();
        setContentView(R.layout.activity_main);

        // Set up the action bar.
        final ActionBar actionBar = getActionBar();
        actionBar.setNavigationMode(ActionBar.NAVIGATION_MODE_TABS);

        // Create the adapter that will return a fragment for each of the three
        // primary sections of the app.
        mSectionsPagerAdapter = new SectionsPagerAdapter(getSupportFragmentManager());

        // Set up the ViewPager with the sections adapter.
        mViewPager = (ViewPager)findViewById(R.id.pager);
        mViewPager.setAdapter(mSectionsPagerAdapter);

        // When swiping between different sections, select the corresponding
        // tab. We can also use ActionBar.Tab#select() to do this if we have
        // a reference to the Tab.
        mViewPager.setOnPageChangeListener(new ViewPager.SimpleOnPageChangeListener() {
            @Override
            public void onPageSelected(int position) {
                actionBar.setSelectedNavigationItem(position);
            }
        });

        // For each of the sections in the app, add a tab to the action bar.
        for (int i = 0; i < mSectionsPagerAdapter.getCount(); i++) {
            // Create a tab with text corresponding to the page title defined by
            // the adapter. Also specify this Activity object, which implements
            // the TabListener interface, as the callback (listener) for when
            // this tab is selected.
            actionBar.addTab(
                    actionBar.newTab()
                            .setText(mSectionsPagerAdapter.getPageTitle(i))
                            .setTabListener(this));
        }
        AwesumFragment af = (AwesumFragment)mSectionsPagerAdapter.getItem(2);
        awesumview = (AwesumView)af.getView();
        Log.d("debug", "av=null? = " + Boolean.toString(awesumview == null));
    }

    @Override
    public boolean onCreateOptionsMenu(Menu menu) {
        // Inflate the menu; this adds items to the action bar if it is present.
        getMenuInflater().inflate(R.menu.main, menu);
        return true;
    }
    
    @Override
    public void onTabSelected(ActionBar.Tab tab, FragmentTransaction fragmentTransaction) {
        // When the given tab is selected, switch to the corresponding page in
        // the ViewPager.
        mViewPager.setCurrentItem(tab.getPosition());
    }

    @Override
    public void onTabUnselected(ActionBar.Tab tab, FragmentTransaction fragmentTransaction) {
    }

    @Override
    public void onTabReselected(ActionBar.Tab tab, FragmentTransaction fragmentTransaction) {
    }
    
    final SensorEventListener mEventListener = new SensorEventListener() {
        public void onAccuracyChanged(Sensor sensor, int accuracy) {
        }

		@Override
        public void onSensorChanged(SensorEvent event) {
            // Handle the events for which we registered
            switch (event.sensor.getType()) {
                case Sensor.TYPE_ACCELEROMETER:
                    System.arraycopy(event.values, 0, mValuesAccel, 0, 3);
                    if (awesumview == null) {
                    	//AwesumFragment af = (AwesumFragment)mSectionsPagerAdapter.getItem(2);
                    	awesumview = ((AwesumFragment)mSectionsPagerAdapter.awesumFragment).awesumview; //(AwesumView)af.getView();
                    }
                    if (awesumview != null)
                    	awesumview.setAccelerometerData(mValuesAccel);
                    //Log.d("debug", "accelerometer: " + Float.toString(mValuesAccel[0]) + ", " + Float.toString(mValuesAccel[1]) + ", " + Float.toString(mValuesAccel[2]));
                    break;

                case Sensor.TYPE_MAGNETIC_FIELD:
                    System.arraycopy(event.values, 0, mValuesMagnet, 0, 3);
                    break;
            }
        }
    };
    
	@Override
	protected void onPause() {
		// The activity must call the GL surface view's onPause() on activity onPause().
		super.onPause();
        mSensorManager.unregisterListener(mEventListener);
		if (awesumview != null) {
			awesumview.onPause();
			Log.d("debug", "onPause");
		}
	}
    
	@Override
	protected void onResume() {
	        // The activity must call the GL surface view's onResume() on activity onResume().
		super.onResume();
        mSensorManager.registerListener(mEventListener, mAccelerometer, SensorManager.SENSOR_DELAY_NORMAL);
		if (awesumview != null) {
			awesumview.onResume();
			Log.d("debug", "onResume");
		}
	}

    /**
     * A {@link FragmentPagerAdapter} that returns a fragment corresponding to
     * one of the sections/tabs/pages.
     */
    public class SectionsPagerAdapter extends FragmentPagerAdapter {
    	private Fragment awesumFragment;

        public SectionsPagerAdapter(FragmentManager fm) {
            super(fm);
            Fragment fragment = new AwesumFragment();
            awesumFragment = fragment;
        }

        @Override
        public Fragment getItem(int position) {
            // getItem is called to instantiate the fragment for the given page.
            // Return a DummySectionFragment (defined as a static inner class
            // below) with the page number as its lone argument.
        	Fragment fragment = null;
        	if (position < 2) {
	            fragment = new DummySectionFragment();
	            Bundle args = new Bundle();
	            args.putInt(DummySectionFragment.ARG_SECTION_NUMBER, position + 1);
	            fragment.setArguments(args);
        	} else {
        		/*if (awesumFragment == null) {
	        		fragment = new AwesumFragment();
		            Bundle args = new Bundle();
		            args.putInt(AwesumFragment.ARG_SECTION_NUMBER, position + 1);
		            fragment.setArguments(args);
		            awesumFragment = fragment;
        		} else*/
        		fragment = awesumFragment;
        	}
            return fragment;
        }

        @Override
        public int getCount() {
            // Show 3 total pages.
            return 3;
        }

        @Override
        public CharSequence getPageTitle(int position) {
            Locale l = Locale.getDefault();
            switch (position) {
                case 0:
                    return getString(R.string.title_section1).toUpperCase(l);
                case 1:
                    return getString(R.string.title_section2).toUpperCase(l);
                case 2:
                    return getString(R.string.title_section3).toUpperCase(l);
            }
            return null;
        }
    }
    
    public static class DummySectionFragment extends Fragment {
        public static final String ARG_SECTION_NUMBER = "section_number";

        public DummySectionFragment() {
        }

        @Override
        public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
            View rootView = inflater.inflate(R.layout.fragment_main_dummy, container, false);
            TextView dummyTextView = (TextView) rootView.findViewById(R.id.section_label);
            dummyTextView.setText(Integer.toString(getArguments().getInt(ARG_SECTION_NUMBER)));
            return rootView;
        }
    }

    public static class AwesumFragment extends Fragment {
        public static final String ARG_SECTION_NUMBER = "section_number";
        public TestScene scene = null;
        public AwesumView awesumview = null;

        public AwesumFragment() {
        }

        @Override
        public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
        	setRetainInstance(true);
            AwesumView av = (AwesumView)inflater.inflate(R.layout.fragment_awesum, container, false);
            awesumview = av;
            Log.d("debug", "fragment::onCreateView");//Integer.toString(av.game.scenes.size()));
            Game.scenes.add(scene = new TestScene());
            return av;
        }
    }

}
